In this paper we present a new cooperative coevolution hybrid Taguchi-genetic algorithm (CCHTGA) to solve high-dimensional optimization problems with continuous variables which are typical in large scale systems. The CCHTGA employs cooperative coevolution frame to decompose the problem into several subsystems and adopts a novel decomposition technique “random grouping strategy”. Subsystem optim...

Vacuum brazing products have excellent joining quality, less deformation and fewer residual stresses. The vacuum brazing technique has significant effect on the microstructure and property of the aluminum brazed joint, but there is little discussion about the optimization of the process. This study investigates how different process parameters affect the tensile properties of 6061-T6 aluminum v...

The objective of this research is to compare the cutting parameters of turning operation the work pieces of medium carbon steel (AISI 1045) by finding the longest tool life by Taguchi methods and Response Surface Methodology: RSM. This research is to test the collecting data by Taguchi method. The analyses of the impact among the factors are the depth of cut, cutting speed and feed rate. This r...

An important issue in multi-channel manufacturing (MCM) design is the channel formation process. In this study, the control parameters that affect the performance of genetic algorithms (GAs) developed to solve channel formation problem, are examined and the optimum values of such parameters are explored using Taguchi method. Two types of problems were taken into account in terms of machines, pa...

A three-level six-factor (arc power, substrate temperature, pre-treatment bias voltage, working pressure, deposition bias voltage and pretreatment time) orthogonal experimental array (L18) to optimize the adhesion strength of arc ion plating (AIP) TiAlN films was designed using the Taguchi method. An optimized film process, namely substrate temperature 220 °C, arc power 60 A, negative bias volt...

The study aims to extend the range of resources from which ethanol may be made from sugar cane bagasse which is used primarily for preparation of pulp and paper. Seven fungal strains isolated from sediment and degraded wood of pulp and paper mill effluent in which one strain identified by 18S rDNA internal transcribed spacer (ITS) as Cryptococcus albidus had higher decolourization and delignifi...

Many factors may influence the successful development of software (SW). Most practitioners, however, tend to use their own preferred methods—some ad hoc—for this task. This paper reviews recent attempts of using orthogonal array (OA) experiments to determine the effect of various influencing factors and then their optimum settings to reduce errors in the SW created. Genichi Taguchi popularized ...

for all industrial processes, modelling, optimisation and control are the keys to enhance productivity and ensure product quality. in the current study, the optimization of process parameters for improving the conversion of isoeugenol to vanillin by psychrobacter sp. csw4 was investigated by means of taguchi approach and box-behnken statistical design under resting cell conditions. taguchi desi...

cationic copolymer gels of acrylamide and [(methacrylamido) propyl] trimethyl ammonium chloride (maptac) were synthesized by free radical aqueous solution polymerization. the taguchi method, a robust experimental design, was employed for the optimization of the synthesis based on the equilibrium swelling capacity of the hydrogels. based on taguchi method a standard l16 orthogonal array with fiv...

Identification of significant process parameters using experiments needs to be carefully formulated as it can be a resource demanding process. Using appropriate statistical techniques such as the Taguchi method of factorial design of experiments, the number of necessary experiments can be reduced and the statistical significance of parameters can be safely identified. In the case of linear fric...